Metallic pens from STAEDTLER can be used for more than just drawing and writing on paper and card. You can also use these products to create sparkling metallic effects on smooth surfaces in no time at all (however, please note that the metallic markers are not smudge-proof on smooth surfaces): Glass. Mirrors. Dry time and permanence depend on the surface used—inks will dry faster and be more permanent on more porous surfaces. Use clear embossing powder or spray fixative for improved permanence. CP metallic ink cleans off stamps easily with water, soapy water, stamp cleaner or alcohol.